Arthur lister iiaggas and robert heaton



(No Model.)

A. L. HAGGAS 8v R. HEATON.

OMBING MACHINE No. 5g7,243.

Patented Oct. 9, 1894.

'me "onlus PETERS co.. Hum-urna.. wAsn UNITED STATES PATENT OFFICE.

ARTHR LISTER HAGGAS `AND ROBERT HEATON, OE OAKWORTH, ENGLAND.

COMBINGMACHINE.

SPECIFICATION forming part of Letters Patent No. 527,243, dated October9, 1 894. Application tiled March 3, `1894. Serial No. 502,184. (Nomodel.)

To all whom it may concern:

Beit known that we, ARTHUR LIsTER HAG- GAs and ROBERT HEA'roN, subjectsof the Queen of Great Britain, residing at Oakworth, near Keighley, inthe county of York, England, have invented new and useful Improvementsin Oombing-Machines, of which the following is a specification.

Our inventionrelates to an improved arrangement and combination of meansfor regulating the pressure upon the drawing-off rollers of combingmachines whereby the pressure is applied to these rollers in such amanner that the wool, or other fiber and the leathers passing betweenthese said rollers are more evenly acted upon whether a large or only asmall sliver of said wool or other ber is thus passing between same bywhich means the durability of these leathers is greatly enhanced.

To carry our invention into eect we make use of the devices illustratedin the accompanying sheet of drawings.

Figure 1 is an elevation partly in section of the drawingoic rollers ofa comb together with such of their bearing parts with our improvementsapplied as are necessary to illustrate our invention. Fig. 2 is a topview of a portion of a combing-machine showing two pairs of drawing-ofi?rollers with our improvements attached.

The drawing-off rollers a and b are mounted in their usual bearings cand d, the roller a, being stationary except its rotary motion, whilethe roller b revolves in movable blocks e e so that its position,relatively with the roller a, may vary in accordance with the quantityof fiber or the thickness of the sliver and the leather f (which for thesake of clearness is only shown in broken lines), as is well understood;pressure, for forcing the roller b against or toward the roller abeingimparted through the blocks e e and the cross-bar g in manner common andwell known. However, in accordance with our invention the pressure thusimparted to the bar g is obtained from the weight h which is adjustablyatt tached to the lever 7c pivoted at m to the bearing 'n carried by theframework o, of the combing machine. The lever his coupled to the leverp by means of the rod q and spring r', said rod q passing looselythrough an open- Lments 0f the leather f.

ing in the end of this lever p so that its downward force or pullthereon is exercised through the spring r, while an adjusting nutsmounted upon the screwed end of the rod q is employed for regulating theresilience of the said spring fr. This lever p is pivoted at t to thetixin g t carried by the bearings c and d, and is bent at p in orderthat it may not interfere with the mounting 01 any of the move- The armp2 of the lever 1o is arranged to press or force the spring u againstthe cross bar g, the screw 'u and movable nut w being for adjusting orregulating the spring u.

By the arrangement of levers above described the pressure upon theroller b is not increased by anyincrease in the thickness of thesliveror fiber passing between it and the roller a since at all times thepressure of the weight h is constant, and as such pressure is exerted atthe central part of the bar g, the roller h does not press one edge ofthe leather f more than the other so that instead of one part of saidleathers being more quickly worn out than another, as is the case whenthe usual pressure regulating means are employed, all parts of themdeteriorate evenly so that the term of their efficiency is greatlyprolonged.

To prevent excessive vibration of the levers p and lo which may becaused by the movements of the rollerb, we employ the springs u and frso that the resilience of these springs may counteract said vibratorymovements.

Such being the obj ect and nature of our invention, what we claim is Ina combing machine, the combination of drawing-oft rollers, movablebearings for one of said rollers, a cross-pressure bar, a bent leverhaving one arm arranged to act against the middle of said bar, a springinterposed between said arm of the lever and the bar, a weighted lever,a rod connected therewith and passing loosely through the bent lever,and a spring interposed between the lever and a nut on the rod.

Witnesses:

WM. WN. VINT, SAMUEL HEY.

